Search found 847 matches

by mmmPI
Wed Dec 01, 2021 9:58 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

That's using less combinators true, but it's doing a bit different thing if one wants to nitpick :D You first turn the number A in its ones complement using a XOR-1 calling it N, then you add 1 to this number calling it T, and then you use the bitshift on all intermediate number A N and T at the sam...
by mmmPI
Wed Dec 01, 2021 7:17 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

I could ask you to make it even more readable. add spaces and use coloured concrete for lamps background. Although we had variable byte definition in far history, the size of byte is standardized for couple of years. You might ask why 4 bits sections are important? well becouse Hex numbers. ;) Ther...
by mmmPI
Wed Dec 01, 2021 5:45 am
Forum: Medium/Big/Gigantic Sized Structures
Topic: Spidertron's infinite patrol
Replies: 11
Views: 548

Re: Spidertron's infinite patrol

Also for something constructive the speed of the spidertron is in the wiki, saying 'does anyone knows the exact speed of a spidertron' is ridiculous because it depends on the number of exoskeletons and on the terrain spidertron is walking on. In an attempt to cut on sterile argument later, Spidertr...
by mmmPI
Tue Nov 30, 2021 9:16 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

thank you I had not thought of using forum search, I now know i need to document again x)

Edit : https://en.wikipedia.org/wiki/Arithmetic_shift
by mmmPI
Tue Nov 30, 2021 9:10 pm
Forum: Combinator Creations
Topic: UPS optimized 12-beacon smelting - w/minimal circuits
Replies: 20
Views: 664

Re: UPS optimized 12-beacon smelting - w/minimal circuits

The time period correspond to after the mentionned ups wars was had gone inactive, so it would seem it is the conclusion of the pending (at the time) PR. I'm willing to believe/hope it is better for UPS , however the source doesn't mention precisely enough for me to infer the cost in UPS is now nece...
by mmmPI
Tue Nov 30, 2021 8:59 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

Thank you for all the clarifications ! I was made unable to answer during 24h by moderators for reason not in relation with this topic; for wich i apologize because it may have given the impression that i was even more confused about the subject than i was and maybe you felt like you didn't explaine...
by mmmPI
Mon Nov 29, 2021 8:24 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

If you want to design something that depends on the bit-representation of the values, you need to think in binary values. And you need to know the representation of negative numbers (two's-complement) and why this is used. And if you cannot think in binary (I cannot, too many digits), you need to w...
by mmmPI
Mon Nov 29, 2021 8:11 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

The "overflow magic" in my example happens when 1 << 31 = -2147483648 = binary 1000 0000 0000 0000 0000 0000 0000 0000 is added to a value with binary 1xxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx. You do (this is binary, only 0 or 1. 1+1 is 10): I figured this out that's where you can multiply...
by mmmPI
Mon Nov 29, 2021 7:34 pm
Forum: Medium/Big/Gigantic Sized Structures
Topic: Spidertron's infinite patrol
Replies: 11
Views: 548

Re: Spidertron's infinite patrol

[Moderated by Koub : response to now moderated part of previous post] Also for something constructive the speed of the spidertron is in the wiki, saying 'does anyone knows the exact speed of a spidertron' is ridiculous because it depends on the number of exoskeletons and on the terrain spidertron i...
by mmmPI
Mon Nov 29, 2021 7:31 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

This one i expected to be possible since it was mentionned in the other thread that the multiplier was made obsolete due to the introduction of bit operations. I think with your explanation i understand how it functions and added the 4rth combinator because there was no 4 combinator version yet ! H...
by mmmPI
Mon Nov 29, 2021 7:07 pm
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

1) This can be fixed by rewiring the constant combinators. One to top and bottom; the other to middle and bottom, using the other color 2) 1 delay combinator will do, correct. However there is a 5 combinator version for pairwise multiplication: (a^2 + b^2) / -2 + (a+b)^2 / 2. (No pictures as I'm no...
by mmmPI
Mon Nov 29, 2021 11:44 am
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

1)The original computes "red * green" while yours needs both red and green wires from two outputs. 2)Your version has an incorrect output for one tick whenever the input changes, because the "each*-1" combinator changes one tick later than the "each^2" combinators. 3)F...
by mmmPI
Mon Nov 29, 2021 10:37 am
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

I understand combinators as raw_math_code_machines so they behave properly. Overflow is inevitable behaviour of numerical machines. Try any clock from wiki, it "suffer" this feature too. Definitely not bug but feature of all devices we have now, include wash machine in your kitchen. I'm a...
by mmmPI
Mon Nov 29, 2021 9:18 am
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Re: Minimalist signal filtering device

It is overflow feature. It is there since von Neuman made first machines. :geek: 32 bits: maximum representable value 232 − 1 = 4,294,967,295 https://en.wikipedia.org/wiki/Integer_overflow I know about that ( thanks to factorio) but i'm wondering if it's normal than the wiki machine is 'failing' at...
by mmmPI
Mon Nov 29, 2021 8:31 am
Forum: General discussion
Topic: Circuits in the eyes of the "beginner", a 2k hour game
Replies: 21
Views: 705

Re: Circuits in the eyes of the "beginner", a 2k hour game

That "advanced combinator tutorial" article is a mess. The "Logic gates" and "Multiplier" sections are useless mathematical trivia. They have no useful purpose in-game, they are just a problem solving exercise. A "dictionary" section would be useful if it had...
by mmmPI
Mon Nov 29, 2021 8:23 am
Forum: Combinator Creations
Topic: Minimalist signal filtering device
Replies: 30
Views: 649

Minimalist signal filtering device

Based on the wiki article about multiplier : https://wiki.factorio.com/Tutorial:Combinator_tutorial#Multiplier_and_Dictionaries.2FArrays I have looked at this circuit to try and understand it and i think it can be made with less combinators but maybe i'm missing something. The original contraption d...
by mmmPI
Sun Nov 28, 2021 10:36 pm
Forum: Combinator Creations
Topic: UPS optimized 12-beacon smelting - w/minimal circuits
Replies: 20
Views: 664

Re: UPS optimized 12-beacon smelting - w/minimal circuits

maybe there was a misunderstanding, in the thread you linked the winning design uses filter inserter for the furnaces output. The post you mentionned in particular is not saying that enabling/disabling regular stack inserter has been made equally CPU-intensive as setting filter on stack filter inser...
by mmmPI
Sun Nov 28, 2021 9:35 pm
Forum: Combinator Creations
Topic: UPS optimized 12-beacon smelting - w/minimal circuits
Replies: 20
Views: 664

Re: UPS optimized 12-beacon smelting - w/minimal circuits

circuit clocking inserters is still lucrative but filters vs enable-disable are no longer better. that's been fixed. do you have any source please ? not that i'm suspicious but i'd be again in the situation i was earlier to think something is true but without any data to back it (except now i shoul...
by mmmPI
Sun Nov 28, 2021 9:07 pm
Forum: General discussion
Topic: Circuits in the eyes of the "beginner", a 2k hour game
Replies: 21
Views: 705

Re: Circuits in the eyes of the "beginner", a 2k hour game

haha this is illustrating well why it is difficult to make tutorial "for beginners" or even just a tutorial . between a young gamer with no/low experience in programming and math background or a grown up person with lots of background in electronic but not necessarily lots of experience wi...
by mmmPI
Sun Nov 28, 2021 8:47 am
Forum: Medium/Big/Gigantic Sized Structures
Topic: Spidertron's infinite patrol
Replies: 11
Views: 548

Re: Spidertron's infinite patrol

Here is an idea how to use Spiders falowing train for defense: Make a wall based on mg turrets, add train stations as often as roboports. When biters attacks, then mg starts fire, it sets train station to enable, so cavalery comes. To the proper section which is under attack. :ugeek: Nice :D You ca...

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